<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>3_props的简写方式</title>
</head>

<body>
    <div id="test1"></div>
    <div id="test2"></div>
    <div id="test3"></div>
    <script type="text/javascript" src="../js/react.development.js"></script>
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <!-- 引入prop-types 用于对组件bian'q -->
    <script type="text/javascript" src="../js/prop-types.js"></script>
    <script type="text/babel">
        // 创建组件
        class Person extends React.Component {
            constructor(props) {
                // console.log(props);
                // 构造器是否接收props，是否传递给super,取决于：是否希望在构造器中通过this访问props
                super(props);
                console.log(this.props);
            }
            // 对标签属性进行类型、必要性的限制
            static propTypes = {
                name: PropTypes.string.isRequired, // 限制name必传，且为字符串
                sex: PropTypes.string, // 限制sex为字符串
                age: PropTypes.number, // 限制age为数值
            };
            // 指定默认标签属性值
            static defaultProps = {
                sex: "男", // sex默认为男
                age: 18, // age默认为18
            };
            render() {
                // console.log(this);
                const { name, sex, age } = this.props;
                return (
                    <ul>
                        <li>姓名：{name}</li>
                        <li>性别：{sex}</li>
                        <li>年龄：{age + 1}</li>
                    </ul>
                );
            }
        }

        // 渲染组件到页面
        ReactDOM.render(<Person name="tom" />, document.getElementById("test1"));
    </script>
</body>

</html>